EiP CD425 Industrial Dehumidifier Owner’s Manual
- June 12, 2024
- EIP
Table of Contents
CD425 (10148BR-US)
INDUSTRIAL DEHUMIDIFIER
OWNER’S MANUAL
PACKAGE CONTENTS
| Item | Description | Quantity |
|---|---|---|
| 10148BR-US | Dehumidifier | 1 |
| 3086119 | Jubilee clip | 2 |
| 3014315 | Reinforced tubing — 16mm I/D | 2 X 3M |
| TPC574 | Manual | 1 |
UNPACKING
Carefully remove the CD425 dehumidifier unit from its packing and visually check for signs of transit damage. If there is evidence of damage DO NOT attempt to operate the unit, call your supplier for advice. Do not discard the packing, as it will be useful when transporting the dehumidifier unit in the future.
INTRODUCTION
The Ebac CD425 dehumidifier removes moisture from the air that circulates
through it. The resulting reduction in relative humidity protects buildings
and their contents from the adverse effects of excess humidity.
The CD425 Dehumidifier comprises of:
a) A compressor
b) Refrigerant evaporator coils
c) Refrigerant condenser coils
d) Circulation fan
e) A drain tray for collecting and disposing of condensed moisture
f) A cabinet to house the above components.
The fan draws the moist air through the evaporator coils which cools the air
below its dew point. Moisture forms on the evaporator and is collected in the
condensate tray which leads away to a permanent drain. The cooled air then
passes through the hot condenser, where it is reheated using the same energy
removed during the cooling phase and the additional heat generated by the
compressor. The air is, therefore, discharged from the dehumidifier at a
slightly higher temperature, but a lower relative humidity, than that at
which it entered. Continuous circulation of air through the dehumidifier
gradually reduces the relative humidity within the area being dehumidified.
Where large amounts of moisture are required to be removed from the area, more
than one dehumidifier may be required, please contact your local distributor
for advice.
SPECIFICATIONS
| MODEL: | CD425 |
|---|---|
| HEIGHT: | 1193 mm (47”) |
| WIDTH: | 1092 mm (43”) |
| DEPTH: | 482 mm (19”) |
| WEIGHT: | 160 kg (353 lbs) |
| AIRFLOW: | 1750 CFM (2975M3/Hr) |
| TOTAL POWER: | 3680 (MAX) |
MAXIMUM OPERATING
TEMPERATURE:| 35ºC (95ºF)
POWER SUPPLY:| 460V 3PH 60Hz
REFRIGERANT:| R407c
CHARGE:| 2.5Kg
“This product contains fluorinated greenhouse gases covered by the Kyoto
Protocol. The refrigeration system is hermetically sealed.
The Global Warming Potential (GWP) of refrigerants used in products
manufactured by Ebac Industrial Products Ltd is as follows
R134a – 1300
R407c – 1610
For type and weight of refrigerant contained in this unit, please refer to the
product data label”
SYSTEM INSALLATION
WIRING
Connect a suitably fused 460V 60Hz 3 phase mains power supply to the MAINS T/B
terminal block inside the electrical box located at the control panel end of
the machine.
DRAINAGE
Connect the outlet from the drain tray (located behind the front grille and
under the evaporator coils) to a suitably sized hose and run the hose to a
permanent drain.
Please ensure that the drainage does not rise above the level of the CD425’s
drain tray. Failure to observe this requirement will result in internal
flooding of the dehumidifier.
POSITIONING
The CD425 is designed for indoor use only.
Position the dehumidifier unit in the centre of the room to be conditioned if
at all possible. Using a spirit level ensure the unit is level in both
directions.
Failure to do so may result in the drain tray overflowing and flooding of the
chamber.
NOTE: Both inlet grille and outlet grille of the dehumidifier unit must
have clear space around them and not be obstructed in anyway.
Minimum installation requirements.
A gap of at least 1000mm is required above the dehumidifier.
The CD425 is a self contained low temperature dehumidifier. All electrical
contactors, overloads, etc are housed in an electrical box built inside the
unit.
The unit is equipped with a defrost valve which energized automatically to
clear any ice formation on the evaporator coils. This allows the unit to
operate at much lower temperatures; the control panel gives indication of the
set humidity, drying and defrost status. 
The following procedure should be followed to test the unit for correct operation.
-
After unpacking connect the unit to a 460V 3PH 60 Hz power supply.
-
Switch the machine to the on position and check for correct fan rotation. (Air blows out of the top of the machine).
-
Check dehumidification process:
a) Remove front cover
b) Check actual relative humidity inside the area
c) Set humidity control to a lower value than the actual relative humidity as follows:
i. Press the UP and DOWN arrow keys together for 3 seconds and the display will start to flash
ii. Use the UP and DOWN arrow keys to adjust the set point to 35% (Range is 35% – 99%)
iii. Press the RIGHT arrow key to save (if the RIGHT arrow key is not pressed for 3 seconds the selection is cancelled)
iv. Once set to 35% and saved the compressor will start and the drying light illuminates.
d) After approximately 6 minutes check the compressor is running.
e) Leave the machine to run for 15 minutes. (NOTE: ensure that the set humidity, see c) above, is set very low as the compressor will switch off when the actual RH coincides with the set point)
f) Observe the evaporator coils
i) If the air temperature is below 20°C, an even coating of ice should cover the entire evaporator coil
ii) If the temperature is above 20°C, droplets of condensed water should cover the entire evaporator coil. -
Leave the unit to run for approximately 42minutes (from compressor starting), after which the unit should go through a 4 minute defrost cycle. During the defrost cycle the defrost solenoid valve is energized and a warming of the evaporator coil can be felt.
If after carrying out the above checks the unit does not appear to function correctly refer to the repairs section or your supplier.
ROUTINE SERVICE
WARNING:
ENSURE THAT THE POWER CORD TO THE MACHINE HAS BEEN DISCONNECTED BEFORE
CARRYING OUT ROUTINE SERVICE. THE SERVICING AND REPAIR OF THIS UNIT SHOULD
ONLY BE CARRIED OUT BY A SUITABLY QUALIFIED PERSON.
To ensure continued full efficiency of the dehumidifier, maintenance procedures should be performed as follows:
-
Clean the surface of the evaporator and condenser coils by blowing the dirt out from behind the fins with compressed air. Hold the nozzle of the air hose away from the coil (approx 6”) to avoid damaging the fins. Alternatively, vacuum clean the coils.
WARNING:
DO NOT STEAM CLEAN REFRIGERATION COILS -
Check that the fan is firmly secured to the motor shaft and that the fan rotates freely. The fan motor is sealed for life and therefore does not need oiling.
-
To check the refrigerant charge, run the unit for 15 minutes and briefly remove the cover. The evaporator coil should be evenly frost coated across its surface. At temperatures above 25°C, the coil may be covered with droplets of water rather than frost. Partial frosting accompanied by frosting of the thin capillary tubes, indicates loss of refrigerant gas or low charge.
-
Check all wiring connections.
-
To check the operation of the defrost system, ensure the air temperature is below 20 ºC, switch the machine on and leave it running for approximately 1 hour. The machine will then enter “Hot Gas” defrost mode for approximately 5 minutes before returning to normal operation. If the unit will not defrost, the printed circuit timer board/sensor may be defective or the by-pass valve may be inoperable.
IF ANY OF THE PRECEDING PROBLEMS OCCUR, CONTACT THE EBAC SERVICE CENTER PRIOR TO CONTINUED OPERATION OF THE UNIT TO PREVENT PERMANENT DAMAGE.
-
Should an electrical component fail, consult the Factory Service Center to obtain the proper replacement part.
If refrigerant gas is lost from the machine, it will be necessary to use a refrigeration technician to correct the fault. Contact the Factory Service Center prior to initiating this action. -
Any competent refrigeration technician will be able to service the equipment. The following procedure must be used:
a. The source of the leak must be determined and corrected.
b. The machine should be thoroughly evacuated before recharging.
c. The unit must be recharged with refrigerant measured accurately by weight.
d. For evacuation and recharging of the machine, use the crimped and brazed charging stub attached to the side of the refrigerant compressor.
The charging stub should be crimped and rebrazed after servicing. NEVER allow permanent service valves to be fitted to any part of the circuit. Service valves may leak causing further loss of refrigerant gas. -
The refrigerant compressor fitted to the dehumidifier is a durable unit that should give many years of service. Compressor failure can result from the machine losing its refrigerant gas. The compressor can be replaced by a competent refrigeration technician.
Failure of the compressor can be confirmed by the following procedure:
a. Establish that power is present at the compressor terminals using a voltmeter.
b. With the power disconnected, check the continuity of the internal winding by using meter across the compressor terminals. An open circuit indicates that the compressor should be replaced.
c. Check that the compressor is not grounded by establishing that a circuit does not exist between the compressor terminals and the shell of the compressor.
TROUBLESHOOTING
| SYMPTOM | CAUSE | REMEDY |
|---|---|---|
| Unit inoperative | 1. No power to unit | 1. Check the power from thepower |
supply panel
Little or no airflow| 1. Loose fan on shaft
2. Fan motor burnt out
3. Dirty refrigeration coils
4. Loose electrical wiring| 1. Tighten fan
2. Replace the fan motor
3. See Routine Maintenance Section
4. Check the wiring diagram to find fault and repair
Little or no water extraction| 1. Insufficient air movement
2. Compressor fault
3. Loss of refrigerant gas
4. Blocked filter dryer| 1. Check all of the above
2. Contact the Factory
Service Center
3. Contact the Factory
Service Center
4. Contact the Factory
Service Center
Unit vibrates excessively| 1. Loose compressor
2. Damaged fan| 1. Tighten the nuts on the compressor mounts
2. Replace fan
Water flooding inside the machine| 1. Drain pipe blocked/frozen
2. Drain pipe too high| 1. Clear the obstruction, straighten or replace
2. No section of the drainage pipe
SPARE PARTS LIST
| DESCRIPTION | PART No. | QUANTITY |
|---|---|---|
| Dehumidifier Controller | 1619522 | 1 |
| Display PCB | 1619525 | 1 |
| Humidity Sensor PCB | 1619526 | 1 |
| LED Board Cable | 2013748 | 1 |
| Humidity Sensor Cable | 2013753 | 1 |
| Keypad Label | 2014468 | 1 |
| Capillary Tube | 3014251 | 12 X 1400mm X 0.047 |
| Reinforced PVC Tube 16mm ID | 3014315 | 3 Meters |
| Condenser Coil | 3020725 | 1 |
| Evaporator Coil | 3020733 | 3 |
| Defrost valve | 3020835 | 1 |
| Filter Dryer | 3020930 | 1 |
| Fan Motor | 3030140 | 1 |
| Contactor (Fan) | 3030301 | 1 |
| Contactor (Compressor) | 3030321 | 1 |
| Auxiliary contact (Fan) | 3030322 | 1 |
| Solenoid Coil | 3030454 | 1 |
| Transformer (230V – 12V) | 3031144 | 1 |
| Transformer (460V – 220V) | 3031173 | 1 |
| Terminal Block | 3031418 | 1 |
| Overload | 3032623 | 1 |
| Coil Sensor | 3035142 | 1 |
| Humidity Sensor Housing | 3035164 | 1 |
| PCB Jumper Socket | 3035834 | 1 |
| MCB (16A) | 3036758 | 1 |
| MCB (2A) | 3037746 | 1 |
| Axial Fan | 3040159 | 1 |
| Standoff Locknut | 3080504 | 32 |
| No.10 x 5/8″ Screw | 3084095 | 6 |
| Jubilee Clip | 3086119 | 2 |
| R407c Refrigerant | 3100453 | 2.5kg |
| Momentary Switch | 3932324 | 2 |
| Indicator Lamp Holder | 3932325 | 2 |
| Switch Contact Block | 3932326 | 2 |
| 12V LED bulb | 3932327 | 4 |
| M20 Cable Gland | 3942330 | 4 |
| M25 Cable Gland | 3942331 | 1 |
| Compressor | 3944925 | 1 |
LIMITED WARRANTY
Our products carry a one-year unconditional warranty against any defects in
workmanship or material. This warranty will cover all parts and labor required
to repair your Ebac product. This warranty is invalid if the unit has been
abused, damaged, whether intentional or accidental, or if any modifications
have been made to the unit.
THE FOREGOING WARRANTY IS EXCLUSIVE AND IS ISSUED IN LIEU OF ALL OTHER
WARRANTIES (WHETHER WRITTEN, ORAL, OR IMPLIED) INCLUDING THE WARRANTY OF
MERCHANTABILITY AND THE WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE. EBAC
INDUSTRIAL PRODUCTS, INC. DISCLAIMS ANY LIABILITY FOR CONSEQUENTIAL DAMAGES,
LOST PROFITS, OR INCIDENTAL DAMAGES FOR BREACH OF ANY WRITTEN OR IMPLIED
WARRANTY WITH RESPECT TO THE FOREGOING DESCRIBED MERCHANDISE.
For Your Records: Model:____
S/N:__
Date Received:__
PLEASE NOTE
To ensure that your Ebac Dehumidifier is accorded the full coverage provided
by this warranty, please complete and mail this card at your earliest
convenience.
WARRANTY REGISTRATION
DATE
MODEL S/N ____ RECEIVED ____
OWNER __
ADDRESS ____
CITY __ STATE ____ ZIP ____
COMMENTS __
Ebac Industrial Products.
700 Thimble Shoals Boulevard, Suite 109, Newport News, Virginia. 23606-2575
WARNINGS
This appliance can be used by children from 8 years and above and persons
with reduced physical, sensory or mental capabilities or lack of experience
and knowledge if they have been given supervision or instruction concerning
use of the application in a safe way and understand the hazards involved.
Children shall not play with the appliance.
Cleaning and user maintenance shall not be made by children without
supervision.
If the SUPPLY CORD is damaged, it must be replaced by the manufacturer, its
service agent or similarly qualified person in order to avoid hazard.
This product contains fluorinated greenhouse gases covered by the Kyoto
Protocol. The refrigeration system is hermetically sealed.
The Global Warming Potential (GWP) of refrigerants used in products
manufactured by Ebac Industrial Products Ltd is as follows
R134a – 1300
R407c – 1610
For type and weight of refrigerant contained in this unit, please refer to the
product data label
Due to the high pressures within the refrigeration circuit, under no
circumstances must direct heat be applied to the evaporator coil in an attempt
to remove the build-up of ice.
No attempt should be made to cut open any part of the refrigeration circuit
due to high pressures and gas involved.
If the unit is switched off at the mains power supply for any reason, the unit
must be allowed to stand at rest for at least three minutes before restarting.
UK Head Office
Ebac Industrial Products Ltd
St Helens Trading Estate
Bishop Auckland
County Durham
DL14 9AD
Tel: +44 (0) 1388 664400
Fax: +44 (0) 1388 662590
www.eipl.co.uk
sales@eipl.co.uk
American Sales Office
Ebac Industrial Products Inc
700 Thimble Shoals Blvd.
Suite 109, Newport News
Virginia, 23606-2575
USA
Tel: +01 757 873 6800
Fax: +01 757 873 3632
www.ebacusa.com
sales@ebacusa.com
References
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